Failure of hamster macrophages to discriminate between infective and noninfective promastigotes of Leishmania donovani during attachment in vitro.

The attachment of infective and noninfective promastigotes of Leishmania donovani to hamster macrophages derived from spleen, lymph nodes, and peritoneal exudate was studied in vitro. Regardless of macrophage origin, no significant differences were observed between attachment of promastigotes that were infective and those that were noninfective for hamsters.